I could be way off the mark here but thinking back to photography at College / Uni in the 80s and early 90s ‘sharpness’ (as a word) seldom cropped up.
I'm not entirely sure that is true. 'Sharpness' was certainly a term that was used extensively in Kodak's marketing materials.
For example, taking a cue from an earlier poster campaign for the 35mm version, the announcement of Ektar 25 becoming available in 120 format in September 1990 was accompanied by the headline "World's Sharpest Colour Film Gets Bigger"
http://www.jackandsue.com/magazines/photographic/pdf/1990 9 120_Size Kodak Ektar 25.pdf
Kodacolour VR was launched in 1982 with "improved grain, sharpness, and contrast" [
CS Monitor report]
Kodak Royal Gold 400 provided "a unique balance of fine grain, sharpness, color reproduction, and contrast to yield results with excellent clarity and enlargement capability" in 1999.
If you take a look at Kodak's
At A Glance Film Selector, for their Royal Gold range, Sharpness is up there with Film Speed, Lighting Conditions, Grain and Process as one of the primary criteria for selecting your film. That puts it pretty high on the list of things to look out for.
Now, this is perhaps more in the consumer/enthusiast space; personally, I always found Kodak Gold way too saturated for my tastes, but it was aimed squarely at the mass market. If you were studying in the 80s and 90s, perhaps you were looking for other things because you were in a different environment. The thing is that the consumer/enthusiast space is what occupies most of the web these days.